Proxy-only libraries are one of the few new features in Final Cut Pro 10.5 - these can even be small enough to fit in an email.
Superficially 10.5 looks like an upgrade, just to suit the New Apple Silicon Macs only, but there is one new feature that is a big deal for those collaborating over the internet. The default “Proxy-only” library creation feature makes what was a tricky task, fast and easy.
The default process creates ProRes Proxy files without giving you the choice of the smaller H.264 Proxy files. I’ll show you how to make those smaller files.
And “One more thing” is the return of the Final Cut Pro user manual as a PDF. Or as an Apple iBook. https://manuals.info.apple.com/MANUALS/1000/MA1921/en_US/final-cut-pro-10-5-user-guide.pdf